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Question

The flame colours of metal ions are due to:


A
metal excess defect
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B
metal deficiency defect
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C
Schottky defect
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D
Frenkel defect
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Solution

The correct option is A metal excess defect
The flame colours of metal ions are due to metal excess defect.
The free electrons can be excited to higher energy levels giving absorption spectra and as a consequence their compounds are coloured.

Chemistry

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